Subsection drainage structural system of underground structure
By using a combination of steel pipes, grouting fillers and spherical valves in the underground structure, the problems of drainage pipes are solved and the reliability and waterproof performance of the drainage system are improved.
Patent Information
- Application Number
- CN202422203278.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-09
AI Technical Summary
In the existing underground structure drainage and drainage structure system, drainage pipes are prone to blockage, seepage, and flow rate is difficult to control, resulting in insufficient waterproofing performance.
The combination of steel pipes, grouting fillers and spherical valves is adopted to control the flow through the compact combination of secondary drilling and grouting fillers, combined with the annular filter mesh to ensure that the steel pipes are closely integrated with the concrete, and the spherical valve is used to control the flow and intercept the sediment during the water discharge process.
It improves the construction accuracy of drainage holes, reduces the risk of silt and sand, prevents leakage and water overflow, and ensures the reliability and waterproof performance of the drainage system.
Smart Images
Figure CN223119095U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of underground structure drainage, in particular to a segmented underground structure drainage and waterlogging drainage structure system Background Technique
[0002] During the construction process of underground buildings, due to the high groundwater level or groundwater seepage, it is often necessary to deal with the problem of accumulated water. The underground structure drainage and waterlogging drainage structure system is mainly used to reserve a water drainage channel in the foundation slab of the underground building. By setting drainage holes and drainage pipes, the infiltrated groundwater or the water accumulated during the construction process is discharged into a preset sump or drainage system. Its main function is to prevent the erosion of the building slab by groundwater
[0003] At present, the common underground structure drainage and waterlogging drainage structure system has certain defects. The traditional underground structure drainage and waterlogging drainage structure system usually directly installs drainage pipes after the first drilling. Since the debris and sediment of the floor concrete are easy to enter the drainage pipes during the first drilling process, it causes the blockage of the drainage pipes. Moreover, due to the lack of reasonable grouting filler filling, the combination of the drainage pipes and the surrounding concrete is not tight enough, and water seepage is likely to occur, reducing the waterproof performance of the entire water drainage structure. During the drainage process, there is no valve for controlling the flow rate designed in the traditional structure, resulting in difficulty in adjusting the water flow rate during the drainage process. It may carry out a large amount of sediment due to too fast drainage, further aggravating the blockage problem of the pipes
[0004] Therefore, a segmented underground structure drainage and waterlogging drainage structure system and its construction method are needed to solve the above technical defects Content of the Utility Model
[0005] The purpose of the utility model is to provide a segmented underground structure drainage and waterlogging drainage structure system to solve the problem of insufficient waterproof performance of the entire water drainage structure proposed in the above background technique
[0006] To achieve the above purpose, the utility model provides the following technical scheme: A segmented underground structure drainage and waterlogging drainage structure system, including a foundation slab and a steel pipe. The steel pipe is installed at the middle position of the top end of the foundation slab. Two groups of flange plates are welded to the upper end of the steel pipe. Grouting filler is filled between the steel pipe and the foundation slab. A globe valve is installed between the flange plates
[0007] Preferably, a cushion layer is provided at the bottom end of the foundation slab, and a waterproof coiled material is installed at the bottom end of the cushion layer
[0008] Preferably, an annular filter screen is provided below the flange plate of the steel pipe, and the inner diameter of the annular filter screen matches the steel pipe
[0009] Preferably, the annular filter screen is located in the lower section of the steel pipe
[0010] Preferably, the diameter of the steel pipe is 100m, and the diameter of the spherical valve is 80m or 100m.
[0011] Preferably, the grouting filler is filled with C40 slightly expanding or cement mortar plus 3% water glass material of the flange plate.
[0012] Preferably, the height from the foundation floor slab to the waterproof coiled material is the thickness of the garage floor slab, and the steel pipe is located at the central position of the foundation floor slab.
[0013] Preferably, a depth of two-thirds of the thickness of the foundation floor slab is opened between the bottom end of the steel pipe and the foundation floor slab.
[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: The underground structure drainage and water diversion structure not only improves the construction accuracy of the drainage holes, but also reduces the risk of sediment being carried out during the initial construction through secondary drilling, realizes the prevention of a large amount of sediment under the floor slab from being carried out, and solves the possible leakage problems during the water drainage process, preventing accidental water overflow.
[0015] (1) By setting up a steel pipe, grouting filler, and spherical valve, during the construction of the water drainage hole, first drill a core hole with a depth of two-thirds of the floor slab thickness and a hole diameter of Φ150, and then install a DN100 steel pipe. The upper end of the steel pipe is welded with a flange plate for connection with other drainage components. The space between the steel pipe and the concrete is filled with grouting filler to ensure the tight combination and waterproof performance between the steel pipe and the surrounding structure. After the grouting material solidifies, install the spherical valve. The inner diameter of the spherical valve is selected as DN80 or DN100 to reasonably control the flow rate. The upper end of the spherical valve is installed with a water connection pipe to drain water to the nearby sump. After the spherical valve is installed, open the spherical valve, and the drill bit performs a second core drilling through the spherical valve, opening the hole to the bottom end of the foundation floor slab to take out the concrete core, and immediately close the spherical valve and connect the drainage pipe to drain and relieve pressure. This improves the construction accuracy of the drainage hole, and at the same time reduces the risk of sediment being carried out during the initial construction through secondary drilling, ensuring the reliability of the underground structure drainage and water diversion, and the waterproof performance of the entire water drainage structure is better;
[0016] (2) By setting up a spherical valve and an annular filter screen, when opening the spherical valve to release water and relieve pressure, the water head of the distal water pipe is as high as possible and gradually decreases. Observe whether there is sediment being carried out in the water discharge volume. It is normal for sediment to be carried out at the beginning of the water discharge. Control the height of the water head. In order to prevent sediment from being carried out during the water discharge process, an annular filter screen is added to the steel pipe in the lower section of the water discharge hole, which can effectively intercept larger sediment particles and reduce the possibility of them entering the drainage system, thereby keeping the drainage channel unobstructed. By controlling the water head height and using the annular filter screen, it is possible to effectively prevent a large amount of sediment under the floor slab from being carried out, avoid damage to the structure under the floor slab, and ensure the safety of the water discharge process;
[0017] (3) By setting up steel pipes, during the water drainage process, there is a possibility of leakage at the connection between the water pipe and the steel pipe for water drainage. To prevent water from overflowing into the garage, the room where the sump well is located is used to collect the leaked water. A 300-mm-high threshold is built at the doorway. If the water in the room accumulates to a certain height, a water pump is used to drain it to the nearby sump well or drainage ditch. This not only solves the possible leakage problem during the water drainage process but also effectively prevents accidental water overflow from damaging the surrounding facilities. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a front view sectional structure schematic diagram of the present utility model;
[0019] Figure 2 is a top view structure schematic diagram of the annular filter screen of the present utility model;
[0020] Figure 3 is a front view structure schematic diagram of the steel pipe of the present utility model;
[0021] Figure 4 is a front view sectional structure schematic diagram of the grouting filler of the present utility model.
[0022] In the figure: 1, steel pipe; 2, ball valve; 3, flange; 4, annular filter screen; 5, grouting filler; 6, cushion layer; 7, waterproof coiled material; 8, foundation slab. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0024] Embodiment 1: Please refer to Figures 1-4 , a segmented drainage structure system for underground structures, including a foundation slab 8 and a steel pipe 1. The steel pipe 1 is installed at the middle position at the top of the foundation slab 8. Two groups of flanges 3 are welded to the upper end of the steel pipe 1. A grouting filler 5 is filled between the steel pipe 1 and the foundation slab 8. A ball valve 2 is installed between the flanges 3. A cushion layer 6 is arranged at the bottom end of the foundation slab 8, and a waterproof coiled material 7 is installed at the bottom end of the cushion layer 6;
[0025] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, for the construction of the drainage hole, first drill a core hole with a depth of two-thirds of the bottom plate thickness and a diameter of Φ150. Then install steel pipe 1 with a DN100 diameter. A flange 3 is welded to the upper end of steel pipe 1 for connection with other drainage components. The gap between steel pipe 1 and the concrete is filled with grouting filler 5 to ensure the tight combination and waterproof performance between steel pipe 1 and the surrounding structure. After the grouting material solidifies, install globe valve 2. The inner diameter of globe valve 2 is selected as DN80 or DN100 to reasonably control the flow rate. A water connection pipe is installed at the upper end of globe valve 2 to drain water to the nearby sump. After globe valve 2 is installed, open globe valve 2, and use the drill bit to conduct a second core drilling through globe valve 2. Drill through to the bottom end of the foundation bottom plate 8 to take out the concrete core, and immediately close globe valve 2, then connect the drainage pipe to drain and relieve the pressure.
[0026] Example 2: A circular filter screen 4 is provided below flange 3 of steel pipe 1. The inner diameter of circular filter screen 4 matches that of steel pipe 1. Circular filter screen 4 is located in the lower section of steel pipe 1. The diameter of steel pipe 1 is 100m, and the diameter of globe valve 2 is 80m or 100m.
[0027] Specifically, as Figure 1 Figure 2 shown, when opening globe valve 2 to drain water and relieve the pressure, the water head of the distal water pipe should be as high as possible and gradually decrease. Observe whether there is sediment being carried out with the water output. It is normal for sediment to be carried out at the beginning of the water drainage. Control the height of the water head. To prevent sediment from being carried out during the water drainage process, add a circular filter screen 4 in the lower section of steel pipe 1 of the drainage hole, which can effectively intercept larger sediment particles and reduce the possibility of them entering the drainage system, thus keeping the drainage channel unobstructed.
[0028] Example 3: The grouting filler 5 is filled with C40 slightly expanding or cement mortar plus 3% water glass material of the flange. The height from the foundation bottom plate 8 to the waterproof coiled material 7 is the thickness of the garage bottom plate. Steel pipe 1 is located at the central position of the foundation bottom plate 8. The depth of the opening between the bottom end of steel pipe 1 and the foundation bottom plate 8 is two-thirds of the thickness of the foundation bottom plate 8.
[0029] Specifically, as Figure 1 and Figure 4 shown, during the water drainage process, there is a possibility of leakage at the connection between the water pipe and steel pipe 1 for water drainage. To prevent water from overflowing to the garage, use the room where the sump is located to collect the leaked water. Build a 300mm high threshold at the door. If the water in the room accumulates to a certain height, use a water pump to drain it to the nearby sump or drainage ditch.
[0030] Working principle: For the construction of the drainage hole, first drill a core hole with a depth of two-thirds of the thickness of the floor slab and a diameter of Φ150. Then install steel pipe 1 with a DN100 diameter. A flange 3 is welded to the upper end of steel pipe 1 for connection with other drainage components. The space between steel pipe 1 and the concrete is filled with grouting filler 5 to ensure the tight combination and waterproof performance between steel pipe 1 and the surrounding structure. After the grouting material solidifies, install ball valve 2. The inner diameter of ball valve 2 is selected as DN80 or DN100 to reasonably control the flow rate. A connecting water pipe is installed at the upper end of ball valve 2 to drain water to the nearby sump. After ball valve 2 is installed, open ball valve 2, and the drill bit performs a second core drilling through ball valve 2. Drill through to the bottom end of the foundation floor slab 8 to take out the concrete core, and immediately close ball valve 2. Connect the drain pipe to drain and relieve pressure. When opening ball valve 2 to release water and relieve pressure, the water head of the distal water pipe should be as high as possible and gradually decrease. Observe whether sediment is carried out with the water discharge. It is normal for sediment to be carried out at the beginning of the water discharge. Control the height of the water head. To prevent sediment from being carried out during the water discharge process, an annular filter screen 4 is added to the steel pipe 1 at the lower section of the drainage hole, which can effectively intercept larger sediment particles and reduce the possibility of them entering the drainage system. During the water discharge process, there is a possibility of leakage at the connection between the water pipe and the drainage steel pipe 1. To prevent water from overflowing to the garage, the room where the sump is located is used to collect the leaked water. A 300-mm-high threshold is built at the door. If the room accumulates water to a certain height, use a water pump to drain it to the nearby sump or drainage ditch.
[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. An underground structure segmented drainage and water diversion structure system, comprising a foundation floor slab (8) and steel pipes (1), characterized in that: A steel pipe (1) is installed at the middle position of the top end of the foundation bottom plate (8). Two groups of flange plates (3) are welded to the upper end of the steel pipe (1). A grouting filler (5) is filled between the steel pipe (1) and the foundation bottom plate (8). A ball valve (2) is installed between the flange plates (3).
2. The sectional drainage structure system for underground structures according to claim 1, characterized in that: A cushion layer (6) is provided at the bottom end of the foundation bottom plate (8), and a waterproof coiled material (7) is installed at the bottom end of the cushion layer (6).
3. The segmented drainage structure system for underground structures according to claim 1, wherein: An annular filter screen (4) is provided below the flange plate (3) of the steel pipe (1), and the inner diameter of the annular filter screen (4) matches that of the steel pipe (1).
4. The segmented drainage structure system for underground structures according to claim 3, characterized in that: The annular filter screen (4) is located in the lower section of the steel pipe (1).
5. The segmented drainage structure system for underground structures according to claim 1, characterized in that: The diameter of the steel pipe (1) is 100m, and the diameter of the ball valve (2) is 80m or 100m.
6. The sectional drainage structure system for underground structures according to claim 1, characterized in that: The grouting filler (5) is filled with C40 micro-expansion or cement mortar plus 3% water glass material of the flange plate.
7. The segmented drainage structure system for underground structures according to claim 1, wherein: The height from the foundation bottom plate (8) to the waterproof coiled material (7) is the thickness of the garage bottom plate, and the steel pipe (1) is located at the central position of the foundation bottom plate (8).
8. A segmented drainage structure system for underground structures according to claim 1, characterized in that: A depth of two-thirds of the thickness of the foundation bottom plate (8) is opened between the bottom end of the steel pipe (1) and the foundation bottom plate (8).